JP2006335363A - Film roll container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a film roll container which offers improved operability and durability. <P>SOLUTION: The film roll container 1 is composed of an upper half-body 2 and a lower half-body 3. Cutter teeth 7 are formed along the front end ridge of the upper half-body 2. The upper half-body 2 and the lower half-body 3 are connected via a hinge 8 to be capable of turning freely relative to each other on the hinge 8, and provided with an upper finger insertion part 14 and a lower finger insertion part 15, respectively. The thumb of one hand is inserted in the upper finger insertion part 14 and the rest of fingers are inserted in the lower finger insertion parts 15 to grab the container 1 with one hand, and the upper half-body 2 and the lower half-body 3 are turned in opening/closing directions relative to each other as the fingers are opened and closed. The extent of the curve and the sectional peripheral length of each half-body 2 and 3 is so determined in shape and dimension that each half-body 2 and 3 turns in the closing direction relatively in proportion to the extent of reduction in the outer dimension of a film roll 4 to embrace and fix the roll 4. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The invention of the present application relates to a container for a film roll, and in particular, a film having a function of cutting a film material such as a wrap film and an aluminum film that wraps food wound around a roll core material, and is excellent in operability and durability. The present invention relates to a container for rolls.

  Today, wrap films and aluminum films are actively used as household kitchen utensils and commercial kitchen utensils, and are indispensable as convenient tools for temporary or long-term storage and preservation of foods. . However, since the container (film roll container) that accommodates the wrap film and the aluminum film in a state of being wound around the roll core is generally disposable, the operability is sacrificed.

  For example, when pulling out the wrap film from the container, if you try to pick the film terminal after the previous cutting, it will stick to the cutting teeth and it will be difficult to pick, or the roll will rewind while it is left standing after the previous cutting, and the film terminal May stick to the film roll and retract into the container, so that it cannot be picked as it is, and the lid of the container must be opened, and it may take time to pick up the film terminal. is there. In addition, if the film terminal can be picked and pulled out of the container, the film roll cannot be securely held from the outside of the container, so that self-locking occurs due to friction of the film roll itself. A considerable amount of force is required to pull out, and the container is deformed. This tendency is particularly prominent when film consumption progresses and the outer dimensions and weight of the film roll decrease.

  Furthermore, if the film terminal can be pulled out of the container and then the film is to be cut with the cutting teeth provided in the desired length container, the rigidity of the paper container is insufficient, the cutting teeth are bent, In addition, the film roll moves unstablely in the container, and the relative position between the film and the cutting teeth cannot be fixed, which causes the cutting force to be dispersed and difficult to cut. There is a problem that the surface is distorted and cannot be aligned on a clean straight line. This tendency is also particularly noticeable when film consumption is advanced and the outer dimensions and weight of the film roll are reduced.

  Furthermore, as described above, if the film can be cut off with the cutting teeth provided in the container having a desired length and then left unattended, as described above, the film roll rewinds and the film terminal adheres to the film roll. In many cases, it is difficult to remove the film terminal after it has been retracted into the container.

Even in the conventional film roll container, there are those which have solved the above-mentioned problems. For example, the container can be used repeatedly, the film roll is prevented from being unwound, the end of the film is easily picked, and the required amount of film can be easily cut (Patent Document 1), film roll (For example, Patent Document 2). However, it is difficult to say that these have completely solved the above-mentioned problems, and in particular, film roll defects caused when film consumption progresses and the outer dimensions and weight of the film roll decrease. There is no one that attempts to solve the various problems arising from stability.
Registered Utility Model No. 3097658 JP 2003-175941 A

  The invention of the present application solves the above-mentioned problems of the conventional film roll container, appropriately selects the material of the container to increase the rigidity of the container, and makes it easy to pick out the film terminal. The film material is fed out from the film roll, and as a result, according to the degree to which the outer dimension of the film roll is reduced, a means capable of holding and fixing the film roll is provided, thereby improving operability, Another object of the present invention is to provide a film roll container that improves durability and eliminates the above problems.

The above problems can be solved by the following invention described in each claim of the present application.
That is, the invention described in claim 1 includes a film roll formed by winding a film material such as a wrap film or an aluminum film around a roll core material, and the film roll is unwound and unwinds. A film roll container having cutting teeth for cutting the film material drawn out from the upper half of the curved plate-like body, and the lower half of the curved plate-like body, The cutting teeth are formed along a tip ridge line of the upper half, and the upper half and the lower half are opposed to each other with their bending directions outward, and their base ends are The hinges that have gathered are connected to each other so that they can rotate relative to each other. The upper and lower fingers are inserted on the outer sides of the hinges. Part and one hand thumb and rest Each finger is inserted, the container is held with the one hand, and the upper half body and the lower half body are relatively rotated in the opening / closing direction by the opening / closing operation of the thumb and the remaining fingers of the one hand. The degree of curvature and the cross-sectional circumference of the upper half and the lower half are adjusted so that the winding is released and the film material is fed out from the film roll. As a result, the shape that can hold and fix the film roll by relatively rotating the upper half and the lower half in the closing direction according to the degree to which the outer dimension of the film roll is reduced. A film roll container characterized in that it is sized.

Since the invention described in claim 1 is configured as described above, the upper finger insertion part and the lower finger insertion part respectively provided in the upper half body and the lower half body of the container are provided with the thumb of one hand and the remaining parts. Inserting each finger, holding the container with one hand, and opening and closing these fingers, the upper half body according to the extent to which the film material is drawn out of the film roll and the outer dimensions of the film roll are reduced. The opening degree between the upper half and the lower half is adjusted, and the upper half and the lower half can hold and fix the film roll, and can be released. As a result, when the film terminal is picked and pulled out of the container, the film roll can be stabilized by opening one hand holding the container appropriately and slightly opening the upper half and the lower half. , The film terminal can be smoothly pulled out of the container, and self-locking due to friction of the film roll itself is eliminated.
In addition, this allows the film terminal to be pulled out of the container to a desired length, and then when the film material is to be cut off with the cutting teeth provided in the container, one hand holding the container is appropriately closed, If the film roll is securely held and fixed with the lower half, the cutting force will not be dispersed, and the film material can be cut smoothly and smoothly, and the cut surface can be evenly aligned.

  The invention described in claim 2 is the film roll container according to claim 1, wherein the turning radius around the hinge portion of the cutting tooth is the hinge of the leading edge of the lower half. The radius is larger than the turning radius centered on the part, and the size is a space for picking out the film terminal on the film roll side after the film material fed from the film roll is cut by the cutting teeth. It is formed below the upper half and is characterized in that the film end can be locked or suspended on the leading edge of the lower half.

  With this configuration, put your hand (the other hand) into the space formed below the upper half of the container, hold the appropriate part of the film terminal with this hand, and pick the film terminal with a clearance. Since the film terminal can be lifted from the film roll and the film terminal can be prevented from coming into close contact with the film roll, the operation of picking out the film terminal becomes easy.

  The invention described in claim 3 is the film roll container according to claim 1 or 2, wherein the upper half and the lower half are relatively closed at the hinge portion. An urging means for urging to rotate in the direction is incorporated.

  With this configuration, with the upper half and the lower half of the container holding and fixing the film roll, the thumb and the remaining fingers of one hand are pulled out from the upper finger insertion portion and the lower finger insertion portion, respectively. However, the upper half and the lower half can continue to hold and fix the film roll. In other words, the brake function works to prevent free rotation of the film roll. After the material is cut, the film roll is rewound while the container is left unattended, and the film terminal does not adhere to the film roll and retract into the container. Thereby, the operation which picks out a film terminal next can be performed easily in a short time.

  Furthermore, the invention described in claim 4 is the container for a film roll according to any one of claims 1 to 3, wherein the container is entirely made of a hard resin or metal. It is a feature.

  With this configuration, the rigidity of the container is increased, the film roll can be held and fixed securely, and the cutting teeth are not bent, so that the film terminal is pulled out of the container to a desired length. Next, when the film material is to be cut with the cutting teeth provided in the container, the cutting force is not further dispersed, and the film can be cut smoothly and smoothly, and the cut surface can be evenly aligned. Further, the container is not disposable, and can be used repeatedly by exchanging the film roll, and can be made durable.

  As described above, according to the film roll container of the present invention, the film roll container is composed of an upper half body and a lower half body, and the upper finger insertion portion and the lower portion respectively provided in the upper half body and the lower half body. Inserting the thumb and the remaining fingers of one hand into the finger insertion part, holding the container with one hand, and opening and closing these fingers, the film material is drawn out from the film roll and the outer shape of the film roll The opening degree of the upper half and the lower half is adjusted according to the degree of size reduction, so that the upper half and the lower half can hold and fix the film roll, and the release can be can do. This makes it possible to reliably and smoothly perform operations such as picking the film terminal and pulling it out of the container, or cutting the film material with the cutting teeth of the container of the desired length, significantly improving the operability of the container. Can be made.

  Also, the turning radius around the hinge part of the cutting tooth formed along the tip ridge line of the upper half of the container is more than the turning radius around the hinge part of the tip ridge line of the lower half When the length is increased by a predetermined length, put your hand (the other hand) into the space formed below the upper half, hold the appropriate part of the film terminal with this hand, and relax the film terminal. Since the film terminal can be lifted from the roll and prevented from coming into close contact with the roll, the film terminal can be easily removed and the operability of the container can be improved. Further improvement can be achieved.

  Further, a biasing means for biasing the upper half and the lower half to relatively rotate in the closing direction to the hinge portion where the base ends of the upper half and the lower half of the container are gathered. When the container is assembled, with the upper and lower half of the container holding and fixing the film roll, pull out the thumb and the remaining fingers of one hand from the upper and lower finger insertion sections. Even so, the brake function works to prevent free rotation of the film roll, so after the film material is cut, the film roll rewinds while leaving the container, and the film terminal adheres to the film roll. And it will not be retracted into the container. Thereby, the operativity of a container can further be improved.

  Furthermore, when the entire container is made of a hard resin or metal, the rigidity of the container is increased, the film roll can be securely held and fixed, and the cutting teeth can be bent. Therefore, the operation of cutting the film material with the cutting teeth provided in the container having a desired length can be performed more reliably and smoothly, and the operability of the container can be further improved. Also, the container can be made durable.

A film roll formed by winding a film material such as a wrap film or an aluminum film on a roll core material is housed inside, and has a cutting tooth for cutting the film material fed out from the film roll by unwinding the winding. The film roll container is composed of an upper half that forms a curved plate and a lower half that also forms a curved plate. The cutting teeth are formed along the edge of the upper half of the upper half, and the upper half and the lower half are opposed to each other with their bending directions on the outside, and the hinge portion where the base ends gather is rotated. The upper finger insertion part and the lower finger insertion part are provided on the outer sides of the upper finger insertion part and the lower finger insertion part, respectively. Inserting each finger, holding the container with the one hand, and rotating the upper half and the lower half relatively in the opening and closing direction by opening and closing the thumb and the remaining fingers of the one hand To be able to.
The degree of bending and the cross-sectional circumference of the upper half and the lower half depend on the degree to which the film material is unwound and the film material is fed out of the film roll, and as a result, the outer dimensions of the film roll are reduced. Thus, they are relatively rotated in the closing direction so that the film roll can be held and fixed.

  Further, the turning radius around the hinge portion of the cutting tooth is larger than the turning radius around the hinge portion of the tip edge line of the lower half, and the size thereof is a film fed out from the film roll. A space for picking out the film end on the film roll side after the material is cut by the cutting teeth is formed below the upper half, and the film end is locked or suspended on the leading edge of the lower half To the extent possible. The container is made of a hard resin or metal as a whole.

Next, an embodiment of the present invention will be described.
FIG. 1 is a perspective view showing a state in which a film material fed from a film roll is cut using the film roll container of the present embodiment, and FIG. 2 is an overall perspective view of the film roll container. 3 is a sectional view of the film roll container.

  The film roll container of this embodiment is a container that accommodates a film roll formed by winding a wrap film that wraps food used as household kitchenware and business kitchenware on a roll core. As for, it is not restricted to a wrap film, An aluminum film, a paper sheet, etc. may be sufficient. Moreover, this container not only accommodates a film roll inside, but also cuts a film material fed out from the accommodated film roll into a desired length to create a film piece or a film sheet to be used for a desired purpose. Also bears the function.

  As shown in FIGS. 1 to 3, the film roll container 1 of the present embodiment has a hard resin upper half 2 that forms a curved plate-like body, and a hard that also forms a curved plate-like body. It consists of a lower half 3 made of resin. A film roll 4 formed by winding a film material 5 such as a wrap film or an aluminum film around a roll core material 6 is accommodated in the inside, and is wound along the tip ridge line of the upper half 2 thereof. Cutting teeth 7 for cutting the film material 5 unwound and fed from the film roll 4 are formed.

  The cutting teeth 7 may be formed by forming the tip ridge line of the upper half body 2 into a tooth shape, or as shown in FIG. It may be formed by being embedded along the tip ridge line of the half body 2. The shape of the tooth itself may be a sawtooth shape or any other shape.

  The upper half body 2 and the lower half body 3 are each composed of a rectangular plate-like body having a smoothly curved cross section in plan view, facing each other with their curved directions on the outside, and a hinge in which their base ends gather The part 8 is connected to be pivotable relative to the pivotal center. Side walls 3a having a side-view lens shape for restricting axial movement of the film roll 4 are integrally formed at both ends of the lower half 3 so as to stand up with respect to the main body. In addition, the same thing as the side wall 3a may be formed also in the both ends of the upper half 2.

  Various examples of the configuration of the hinge portion 8 are conceivable. 5 is one in which a torsion coil spring 11 is incorporated in a hinge 10 having the same structure as that of a hinge usually used for door mounting or the like. The body 2 and the lower half 3 are connected. The biasing direction of the torsion coil spring 11 is a direction in which the upper half 2 and the lower half 3 are closed. 6 shows a structure in which a coil spring 12 is interposed between the upper half 2 and the lower half 3 in the vicinity of the hinge 8 in a direction in which both halves are closed. The structure itself may be any of a hinge system as shown in FIG. 7, a system in which the upper half body 2 and the lower half body 3 are formed by integral molding as shown in FIG. Moreover, in the integral molding method shown in FIG. 8, if the hinge part 8 is thinly formed by an appropriate amount, it can be provided with a spring function. Further, in the integral molding method shown in FIG. 8, it is also conceivable that the material itself is made of a material having a spring property, for example, stainless steel, and the hinge portion 8 is provided with a spring function. Furthermore, as shown in FIGS. 9 and 10, it is also conceivable to use a leaf spring 13 for the hinge portion 8, and in this case, both sides thereof are the base ends of the upper half 2 and the lower half 3. It is fixed to the inner surface of each part by spot welding, bolting or the like (FIG. 9), or when the upper half 2 and the lower half 3 are made of resin, they are embedded and fixed at their respective base ends. A scheme is conceivable (FIG. 10).

  Moreover, the upper half body 2 and the lower half body 3 are each provided with the upper finger insertion part 14 and the lower finger insertion part 15 on the outer curved surface thereof. Then, as shown in FIG. 1, the upper finger insertion part 14 and the lower finger insertion part 15 are inserted with the thumb and the remaining fingers of one hand, respectively, and hold the container 1 with the one hand, By opening and closing the thumb and the remaining fingers of one hand, the upper half 2 and the lower half 3 can be relatively rotated in the opening and closing direction around the hinge 8. It has become. Here, “inserting the thumb and the remaining finger of one hand into the upper finger insertion part 14 and the lower finger insertion part 15”, respectively, includes insertions that do not conform to the standard due to the grip of a human hand. Should not be interpreted formally.

Note that the upper finger insertion portion 14 and the lower finger insertion portion 15 are formed on the outer curved surface of the upper half 2 and on the outer curved surface of the lower half 3, and are elongated or inverted concave finger locking strips. 16 and 17 are integrally attached to each other, so that between the finger locking strip 16 and the outer curved surface of the upper half 2, and between the finger locking strip 17 and the outer curved surface of the lower half 3. , Each is formed. These finger locking strips 16 and 17 are locked to these fingers when the thumb and the remaining fingers inserted into the upper finger insertion portion 14 and the lower finger insertion portion 15 are opened. Thus, the upper half 2 and the lower half 3 are relatively rotated in the opening direction in accordance with the opening operation of these fingers. The bottom surface (outer surface) 17a of the finger locking strip 17 is formed flat at least at its peripheral edge so that the container 1 can be stably placed on an arbitrary table.
The finger locking strips 16 and 17 are formed separately from the upper half 2 and the lower half 3, and these are formed on the outer curved surface of the upper half 2 and the outer curved surface of the lower half 3. The upper half body 2 and the lower half body 3 may be integrally formed from the beginning.

  As shown in FIG. 3, the degree of each curve and the cross-sectional circumference of the upper half 2 and the lower half 3 are unwound and the film 5 is unwound from the film roll 4. As a result, the upper half body 2 and the lower half body 3 relatively rotate in the closing direction in accordance with the degree to which the outer dimensions of the film roll 4 are reduced (see the chain line in the drawing) to hold the film roll 4. It has a shape and size that can be held and fixed.

  As shown in FIG. 3, the degree of each curve and the cross-sectional circumference of the upper half 2 and the lower half 3 are the hinges of the cutting teeth 7 formed along the tip ridge line of the upper half 2. The turning radius around the portion 8 is made larger than the turning radius around the hinge portion 8 of the tip ridge of the lower half 3, and the magnitude of the turning radius is about the film roll 4. A space A for picking out the film terminal on the film roll 4 side after the film material 5 fed out from the film is cut by the cutting teeth 7 is formed below the upper half body 2, and the film terminal is the lower half body It is set to such an extent that it can be locked or hung on the tip end ridgeline of 3.

Next, the usage method of the container 1 for film rolls of a present Example is demonstrated.
As shown in FIG. 1, the thumb of one hand is inserted into the upper finger insertion part 14 of the upper half 2 and the remaining finger of one hand is inserted into the lower finger insertion part 15 (see FIG. 3) of the lower half 3 Then, the container 1 is held with the one hand. In this state, if the thumb of the other hand and the remaining fingers are moved slightly in the opening direction, and the upper half 2 and the lower half 3 are relatively rotated in the opening direction, the upper half Since the holding / fixing of the film roll 4 by the body 2 and the lower half 3 is loosened, a part of the finger of the other hand is inserted into the space A below the upper half 2 during this time. Using A appropriately and appropriately, the appropriate portion of the film terminal adhering to the cutting teeth 7 is picked with the other hand, and this is pulled out of the container 1 to a desired length. At this time, the film roll 4 rotates stably, and the film terminal can be pulled out of the container 1 smoothly. In addition, when the film terminal is locked or suspended by the front-end ridgeline of the lower half body 3, this film terminal is pulled out more easily and smoothly.

  When the film terminal is pulled out of the container 1 to a desired length with the other hand, the thumb and the remaining fingers of one hand holding the container 1 are appropriately closed, and the upper half 2 and the lower half 3 Then, the film roll 4 is securely held and fixed, and the film material 5 is pulled with the other hand so as to hit the cutting teeth 7 provided in the container 1, and this is cut off by the cutting teeth 7. At this time, the cutting force is not dispersed, and the cutting can be performed smoothly and reliably, and the cut surfaces can be neatly arranged.

  In this way, when one piece of film or film sheet is cut out and then another piece of film or film sheet is to be produced, the thumb of one hand holding the container 1 and the remaining fingers are slightly moved again. The film roll 4 is loosely held and fixed by the upper half 2 and the lower half 3, and the film terminal is picked with the other hand, and this is desired outside the container 1. Next, close the thumb and the remaining fingers of one hand holding the container 1 appropriately, and securely hold and fix the film roll 4 between the upper half 2 and the lower half 3. Then, the film material 5 is cut by the cutting teeth 7 with the other one hand.

  When the cutting work of the film material 5 with the cutting teeth 7 is finished, the thumb and the remaining fingers of one hand are respectively extracted from the upper finger insertion portion 14 and the lower finger insertion portion 15 and the container 1 is appropriately grasped, and this is shown in FIG. Place on any platform in the posture shown. At this time, when the biasing means such as the torsion coil spring 11, the coil spring 12, and the leaf spring 13 is incorporated in the hinge portion 8, the upper half body 2 and the lower half body 3 hold the film roll 4. The fixed state can be continued, the brake function works, and free rotation of the film roll 4 can be prevented.

Since the film roll container 1 of the present embodiment is configured as described above, the following effects can be achieved.
Insert the thumb and the remaining fingers of one hand into the upper finger insertion part 14 and the lower finger insertion part 15 respectively provided in the upper half 2 and the lower half 3 of the container 1, and hold the container 1 with one hand. When these fingers are opened and closed, the opening degree of the upper half 2 and the lower half 4 depends on the degree to which the film material 5 is drawn out from the film roll 4 and the outer dimensions of the film roll 4 are reduced. By adjusting, the upper half body 2 and the lower half body 3 can hold and fix the film roll 4 and can release the film roll 4.
Thereby, when picking the film terminal and pulling it out of the container 1, if one hand holding the container 1 is appropriately opened and the opening degree of the upper half 2 and the lower half 3 is slightly widened, The film roll 4 rotates stably and the film terminal can be smoothly pulled out of the container 1, so that the self-lock due to the friction of the film roll 4 itself is not caused.
In addition, by this, when the film terminal is pulled out of the container 1 to a desired length and then the film material 5 is to be cut off by the cutting teeth 7 provided in the container 1, one hand holding the container 1 is appropriately closed. If the film roll 4 is securely held and fixed by the upper half 2 and the lower half 3, the cutting force is not dispersed and the cut can be cut smoothly and cleanly. Can be aligned.

  Further, the turning radius of the cutting tooth 7 around the hinge portion 8 is larger than the turning radius around the hinge portion 8 of the tip edge line of the lower half 3, A space A for picking out the film terminal on the film roll 4 side after the film material 5 fed out from the film roll 4 is cut by the cutting teeth 7 is formed below the upper half 2 and the film terminal. Can be locked or suspended at the tip ridge line of the lower half 3 so that a suitable part of the film terminal can be placed by placing a hand (the other hand) in the space A. The film terminal can be picked out by gripping with this hand, and the film terminal can be lifted from the film roll 4 to prevent the film terminal from coming into close contact with the film roll 4. Operations out knob end is facilitated.

  When the biasing means for biasing the upper half 2 and the lower half 3 so as to relatively rotate in the closing direction is incorporated in the hinge portion 8, the upper half 2 and the lower half 3. Even when the thumb and the remaining fingers of one hand are pulled out from the upper finger insertion portion 14 and the lower finger insertion portion 15 with the film roll 4 held and fixed, the upper half 2 and the lower half 3 can continue the holding / fixing state of the film roll 4, that is, the brake function works to prevent free rotation of the film roll 4. The film roll 4 is rewound while the container 1 is left unattended, and the film terminal does not adhere to the film roll 4 and retract into the container 1. Thereby, the operation which picks out a film terminal next can be performed easily in a short time.

  Furthermore, since the container 1 is made of a hard resin, the rigidity of the container 1 is increased, the film roll 4 can be securely held and fixed, and the cutting teeth 7 are not bent. Therefore, when the film terminal is pulled out of the container 1 to a desired length and then the film material 5 is to be cut off by the cutting teeth 7 provided in the container, the cutting force is not further dispersed and more reliably. It can be cut smoothly and the cut surface can be neatly aligned. Further, the container 1 is not disposable, and can be used repeatedly by exchanging the film roll 4, and can be made durable.

The invention of the present application is not limited to the above embodiments, and various modifications can be made without departing from the scope of the invention.
For example, although the film roll container 1 of the present embodiment is made of hard resin, it may be made of metal instead. In this case, if the lower surface of the upper half 2 close to the cutting teeth 7 is coated with a non-conductive substance such as resin, the static electricity generated when the film terminal is picked up is easily generated. The film terminal on the side of the film roll 4 after the film material 5 is cut sticks to the lower side surface, and the operation is facilitated when the film terminal is next picked up with a finger.

In addition, the upper finger insertion portion 14 and the lower finger insertion portion 15 can be formed in various ways without depending on the finger locking bands 16 and 17. For example, a bag-like pocket may be formed.
Further, as means for stably placing the film roll container 1 on an arbitrary table, a tripod-like one may be configured by forming a protrusion or attaching parts instead of the finger locking band 17. Further, a hole or a hanging tool may be added to a part of the container 1 so that the container 1 is hung on the hook.

It is a perspective view which shows the state which has cut | disconnected the film material drawn | fed out from a film roll using the container for film rolls of one Example of this invention. It is a whole perspective view of the container for film rolls. It is sectional drawing of the container for film rolls. It is a figure which shows the modification of the cutting tooth formed along the front-end ridgeline of the upper half of the film roll container. It is a figure which shows one structural example of the hinge part which is a connection part which the relative rotation of the upper half body and lower half body of the film roll container is possible. It is a figure which shows the other structural example. It is a figure which shows the one aspect | mode of the connection of the upper half body and lower half body in the example of another structure. It is a figure which shows the other structural example same as the above. It is a figure which shows the other structural example same as the above. It is a figure which shows the other structural example same as the above.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Container for film rolls, 2 ... Upper half body, 3 ... Lower half body, 3a ... Side wall, 4 ... Film roll, 5 ... Film material, 6 ..., 7 ... Cutting tooth, 8 ... Hinge part, 9 ... Cutting tooth Pieces, 10 ... hinges, 11 ... torsion coil springs, 12 ... coil springs, 13 ... leaf springs, 14 ... upper finger insertion portions, 15 ... lower finger insertion portions, 16, 17 ... finger locking strips, 17a ... bottom surfaces, A ... space.

Claims (4)

Cutting teeth for accommodating a film roll formed by winding a film material such as a wrap film or an aluminum film around a roll core material, and for cutting the film material fed from the film roll by unwinding the winding. A film roll container comprising:
It consists of an upper half that forms a curved plate and a lower half that also forms a curved plate,
The cutting teeth are formed along the tip ridge line of the upper half body,
The upper half and the lower half are:
They are opposed to each other with their bending directions on the outside, and are relatively rotatably connected around a hinge part where their base ends gather.
The upper finger insertion portion and the lower finger insertion portion are respectively provided on the outside thereof, and the thumb and the remaining fingers of one hand are respectively inserted into the upper finger insertion portion and the lower finger insertion portion, and the container with the one hand The upper half and the lower half can be relatively rotated in the opening and closing direction by the opening and closing operation of the thumb and the remaining fingers of the one hand.
The degree of bending and the cross-sectional circumference of the upper half and the lower half are such that the winding is unwound and the film material is fed out of the film roll, resulting in a decrease in the outer dimensions of the film roll. Depending on the degree, the upper half and the lower half rotate relatively in the closing direction so that the film roll can be held and fixed. Film roll container. The turning radius of the cutting tooth centered on the hinge portion is larger than the turning radius of the lower half of the tip ridge line around the hinge portion,
The size is such that a space for extracting the film terminal on the film roll side after the film material fed from the film roll is cut by the cutting teeth is formed below the upper half body, The film roll container according to claim 1, wherein the film terminal is set to such a degree that the film terminal can be locked or suspended on the leading edge of the lower half.   The biasing means for biasing the upper half and the lower half so as to relatively rotate in the closing direction is incorporated in the hinge portion. The container for film rolls of 2. The film container according to any one of claims 1 to 3, wherein the container is entirely made of a hard resin or metal.

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